Harrow



D. M. CLEVENGER.

HARROW.

APPLICATION FILES OCT- (2, 1920.

1,428,360. Pat b ds pt. 5, 1922.

JaviaM- z ff Patented Sept. 5, 1922.

UTNHTEE essee A DAVID M. CLEVENG'ER, OF R-EEDS, MISSOURI.

HARE O'W.

Application filed October 12, 1920. Serial No. 416,421.

T 0 all whom it may concern:

Be it known that I, DAVID M. CLnvnNonn, a citizen of the United States,residing at Reeds, in the county of Jasper and State of Missouri, haveinvented certain new and useful Improvements in Harrows; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable'others skilled in the art to which itappertains to make and use the same.

This invention relates broadly to improvements in harrows, and it hasmore particular reference 'to a novel evener for use in connection withsuch a device.

One object of the invention is to provide a harrow including a novelevener which in turn includes novel clamps provided with channelportions receiving the evener bar and oppositely disposed relativelylong attaching ears provided with a plurality of apertures to permit thedraft connectors to be connected with some of the apertures and alsopermit other connectors, between the evener bar and blade carryingframe, to be connected with some of the other apertures; thisconstruction also permitting the clamp to be reversed to compensate forwear, and thus increasing the life of the improved evener.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawings, forming a part of this specification andin which like numerals are employed to designate like parts throughoutthe same: I

Figure 1 is a top plan view of a harrow constructed in accordance withmy invention.

- Figure 2 is an enlarged detail view taken on the plane of the line 44of Fig. 1, looking in the direction of the arrows.

Figure 3 is a detail perspective view of one of the clamps used inconnection with my improved evener.

Referring to the drawings, wherein the preferred embodiment of myimprovements is clearly illustrated, it will be seen that the harrowincludes a plurality of frames 1, all of which are inclined with respectto the path of travel, all being inclined in the same direction, andeach including a plurality of Extending transversely ity of the devicewithout materially increasing the cost of manufacture. bar 5 carries aplurality of clamps, designated as a whole, by the numeralsfi. Theseclamps can be best seen in Fig. 3. Byirefer-ring to this figure, it willbe seen that each clamp is composed ofa pair of flat metal plates placedone on top of the other in the manner shown. Each plate is bent betweenits ends to provide channel portions 8 for reception of the bar 5, anda. pair of relatively long oppositely extending attaching ears 9, thelatter being provided with a plurality of apertures, for a purpose to behereinafter set forth. As best seen in Fig. 2, clamping bolts 10 extendthrough the apertures 11 which are adjacent the evener bar on oppositesides of the latter. These clamping bolts, as is obvious, retain theclamps in positionon' said bar and permit them to be adjusted along thelatter. Suitable flexible connectors 12' including links with clevisesat their opposite ends are employed for the purpose of attaching saidbar 5 to the frames 1. connected to the attaching eyes 4, while theother clevises are connected to the desired apertures 11 in said clamps.

A plurality of draft connectors including divergent rods 14 and anintermediate rod 15 are pivotally connected at one of their ends to someof the apertures 11 in said,

clamps. This particular arrangement of the members 14 and 15 insures aneven pull at all times and causes the frames 1 to move directly forwardinstead of from. side to side as oftentimes occurs. Conventionalhitching means including a doubletree 16 and a pair of singletrees 17,are connected with said draft connector means in any suitable manner.

To complete the improved device, I make This evener Some of the clevisesare use of a plurality of suitable cutting blades 18, having beveledcutting edges 19, the same being bolted or otherwise detachably securedto the blade carrying frames as indicated. at 22.

From the foregoing desorption, it will be seen that l. have devised aharrow in cluding novel and effective evener means or draft connectingmeans. {)ne of the main features of construction of the evener residesin the employment of the novel clamp provided with a plurality ofattaching apertures which permit the separable parts of the clamp to bereversed to compensate for wear, and to permit the same clamp to serveas means for attachment of the draft connectors and flexible connectorswhich secure the evener bar to said frames. These, and otherconstructional features have, no doubt, be come apparent from theforegoing description.

The foregoing description is thought to be sufficient to enable personsskilled in the art -to which this invention appertains, to obtain aclear understanding of the same and to be able to make and use the same.For this reason, a more lengthy description is deemed unnecessary.

Since probably the best results may be obtained with the constructionand arrangement of parts shown, I take this construction and arrangementas the preferred embodiment of my invention. However, I wish it to beunderstood that various minor changes in the shape, size and arrangementof parts may be resorted to without departing from the spirit of theinvention or the scope of the adjoined claims.

I claim:

1. In a harrow, the combination of a plurality of frames, all inclinedin the same direction and including blade carrying bars; of anglemembers including eyes secured to the opposite forward corners of saidframes, an evener bar, clamps carried thereby, flexible membersconnected to said clamps and the aforesaid eyes, and diverging draftconnectors attached to said clamps.

2. In a harrow, the combination with a plurality of blade carryingframes; of attaching members secured to the opposite forward cornersthereof; a relatively long cylindrical bar spaced. from and extendingtransversely across the front of the frames; a plurality of clamps onsaid bar, each clamp being up of two plates placed together and bentbetween their ends to form channels receiving said bar and relativelylong oppositely extending attaching ears on opposite sides of thechannels, said ears being provided with a plurality of apertures, andretaining bolts passing through the apertures adjacent said bar;flexible connectors including clevises connected with said otherapertures and connected to the aforesaid attaching members; and draftconnecting means including members connected with some of the aperturesof the clamps.

In testimony whereof I have hereunto set my hand.

DAVID M. CLEVE-NGER.

